Rewrite
Rewrite is a software development methodology that involves completely re-implementing an existing system or component from scratch, often to address technical debt, improve performance, or adopt modern technologies. It contrasts with incremental refactoring by discarding the old codebase entirely and building a new one with updated requirements and architecture. This approach is typically used when legacy systems become too costly to maintain or when fundamental architectural changes are needed.
Developers should consider a rewrite when an existing codebase has accumulated significant technical debt, uses outdated technologies that hinder productivity, or has architectural flaws that prevent necessary feature additions. Common use cases include migrating from monolithic to microservices architectures, replacing legacy systems with modern frameworks, or when maintenance costs exceed the benefits of incremental improvements. However, it requires careful planning due to risks like project delays and loss of existing functionality.